DOI: 10.1016/j.atmosenv.2014.07.061
Scopus记录号: 2-s2.0-84908345989
论文题名: Half-century nitrogen deposition increase across China: A gridded time-series data set for regional environmental assessments
作者: Lu C ; , Tian H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97 起始页码: 68
结束页码: 74
语种: 英语
英文关键词: China
; Increase trend
; Nitrogen deposition
; Spatial distribution
Scopus关键词: China
; Environmental assessment
; Increase trend
; Nitrogen deposition
; Time-series data
; Spatial distribution
; nitrogen
; annual variation
; atmospheric modeling
; biogeochemical cycle
; climate modeling
; data set
; dry deposition
; ecosystem service
; environmental assessment
; land surface
; nitrogen
; policy making
; spatial distribution
; spatial resolution
; spatial variation
; spatiotemporal analysis
; time series analysis
; agricultural land
; Article
; atmospheric transport
; biogeochemical cycle
; carbon sequestration
; China
; climate
; dry deposition
; ecosystem
; environmental enrichment
; environmental impact assessment
; environmental monitoring
; hydrology
; nitrogen deposition
; precipitation
; river basin
; time series analysis
; water supply
; wet deposition
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: A wide variety of studies have revealed a substantial increase in nitrogen (N) deposition in China, but the lack of spatially-explicit time-series N deposition data set has long hindered us from assessing the impacts of atmospheric N input on ecosystem services. In this study, we combined site-level monitoring, gridded precipitation data and atmospheric transport modeling results to generate annual N bulk deposition data in China with a spatial resolution of 10km×10km and a time span from 1961 to 2008. It shows that national average N deposition rate had large interannual variation, and it increased by 59%, from 12.64kgNha-1yr-1 in the 1960s to 20.07kgNha-1yr-1 in the recent decade, with the most rapid increase centered in the southeastern China that is already N-enriched. Large spatial variation as well as dry deposition input has to be taken into account when estimating the amount of N deposited onto land surface of China. The spatial and temporal information on N deposition derived from this study could be used by ecosystem, hydrological, and climate modeling as well as by policy makers for assessing the impacts of nitrogen enrichment on regional climate, water resources, and biogeochemical cycles. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80581
Appears in Collections: 气候变化事实与影响
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作者单位: International Center for Climate and Global Change Research, School of Forestry and Wildlife Sciences, Auburn University, 602 Duncan Drive, Auburn, AL, United States
Recommended Citation:
Lu C,, Tian H. Half-century nitrogen deposition increase across China: A gridded time-series data set for regional environmental assessments[J]. Atmospheric Environment,2014-01-01,97